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Code Issues Packages Projects Releases 6 Wiki Activity

fix incorrect typing of globals bitmap

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This commit is contained in:
Jaden Weiss
2019-09-12 16:33:14 -04:00
parent e26f0b35e3
commit d975ed9373
1 changed files with 13 additions and 2 deletions
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compiler/gc.go
+13 -2
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@@ -398,10 +398,21 @@ func (c *Compiler) addGlobalsBitmap() bool {
for i, b := range bitmapBytes { for i, b := range bitmapBytes {
bitmapValues[len(bitmapBytes)-i-1] = llvm.ConstInt(c.ctx.Int8Type(), uint64(b), false) bitmapValues[len(bitmapBytes)-i-1] = llvm.ConstInt(c.ctx.Int8Type(), uint64(b), false)
} }
bitmapArray := llvm.ConstArray(llvm.ArrayType(c.ctx.Int8Type(), len(bitmapBytes)), bitmapValues) bitmapArray := llvm.ConstArray(c.ctx.Int8Type(), bitmapValues)
bitmapNew := llvm.AddGlobal(c.mod, bitmapArray.Type(), "runtime.trackedGlobalsBitmap.tmp") bitmapNew := llvm.AddGlobal(c.mod, bitmapArray.Type(), "runtime.trackedGlobalsBitmap.tmp")
bitmapOld := c.mod.NamedGlobal("runtime.trackedGlobalsBitmap") bitmapOld := c.mod.NamedGlobal("runtime.trackedGlobalsBitmap")
bitmapOld.ReplaceAllUsesWith(bitmapNew) for _, inst := range getUses(bitmapOld) {
c.builder.SetInsertPointBefore(inst)
bc := c.builder.CreateBitCast(bitmapNew, bitmapOld.Type(), "runtime.trackedGlobalsBitmap.cast")
for i := 0; i < inst.OperandsCount(); i++ {
if inst.Operand(i) == bitmapOld {
inst.SetOperand(i, bc)
}
}
}
if len(getUses(bitmapOld)) > 0 {
panic("failed to eliminate tracked globals bitmap representation")
}
bitmapNew.SetInitializer(bitmapArray) bitmapNew.SetInitializer(bitmapArray)
bitmapNew.SetName("runtime.trackedGlobalsBitmap") bitmapNew.SetName("runtime.trackedGlobalsBitmap")